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moby--moby/vendor/github.com/kr/pty/ioctl_bsd.go
Alexander Morozov f2614f2107 project: use vndr for vendoring
Signed-off-by: Alexander Morozov <lk4d4@docker.com>
2016-11-03 15:31:46 -07:00

39 lines
1.1 KiB
Go

// +build darwin dragonfly freebsd netbsd openbsd
package pty
// from <sys/ioccom.h>
const (
_IOC_VOID uintptr = 0x20000000
_IOC_OUT uintptr = 0x40000000
_IOC_IN uintptr = 0x80000000
_IOC_IN_OUT uintptr = _IOC_OUT | _IOC_IN
_IOC_DIRMASK = _IOC_VOID | _IOC_OUT | _IOC_IN
_IOC_PARAM_SHIFT = 13
_IOC_PARAM_MASK = (1 << _IOC_PARAM_SHIFT) - 1
)
func _IOC_PARM_LEN(ioctl uintptr) uintptr {
return (ioctl >> 16) & _IOC_PARAM_MASK
}
func _IOC(inout uintptr, group byte, ioctl_num uintptr, param_len uintptr) uintptr {
return inout | (param_len&_IOC_PARAM_MASK)<<16 | uintptr(group)<<8 | ioctl_num
}
func _IO(group byte, ioctl_num uintptr) uintptr {
return _IOC(_IOC_VOID, group, ioctl_num, 0)
}
func _IOR(group byte, ioctl_num uintptr, param_len uintptr) uintptr {
return _IOC(_IOC_OUT, group, ioctl_num, param_len)
}
func _IOW(group byte, ioctl_num uintptr, param_len uintptr) uintptr {
return _IOC(_IOC_IN, group, ioctl_num, param_len)
}
func _IOWR(group byte, ioctl_num uintptr, param_len uintptr) uintptr {
return _IOC(_IOC_IN_OUT, group, ioctl_num, param_len)
}